40 CFR § 427.71 - Specialized definitions.
For the purpose of this subpart:
(b) The abbreviation “mpc” shall mean 1000 pieces of floor tile.
(c) The term “pieces” shall mean floor tile measured in the standard size of 12″ × 12″ × 3/32″.
(d) COD shall mean COD added to the process waste water.
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